assuming you haven't already done this. i just put mine in a spreadsheet. i include figures for "investing" and "saving" then just put an amount i know i can afford every month. just make the budget and stick to it. if you find you can't stick to the budget then maybe examine your spending habits and see if there's anything you can do without buying.
Start by tracking your income and expenses to understand where your money goes. Setting up a budget allows you to see your monthly spending and identify areas where you can cut back.
Open up a savings account. Automatically put X amount of your paycheck aside each pay period. It does not have to be a lot. The trick for me is that I don’t even see it and if I don’t see it, it’s essentially not there.